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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | |
| 2 // Redistribution and use in source and binary forms, with or without | |
| 3 // modification, are permitted provided that the following conditions are | |
| 4 // met: | |
| 5 // | |
| 6 // * Redistributions of source code must retain the above copyright | |
| 7 // notice, this list of conditions and the following disclaimer. | |
| 8 // * Redistributions in binary form must reproduce the above | |
| 9 // copyright notice, this list of conditions and the following | |
| 10 // disclaimer in the documentation and/or other materials provided | |
| 11 // with the distribution. | |
| 12 // * Neither the name of Google Inc. nor the names of its | |
| 13 // contributors may be used to endorse or promote products derived | |
| 14 // from this software without specific prior written permission. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 | |
| 28 // Flags: --harmony-scoping --allow-natives-syntax | |
| 29 | |
| 30 "use strict"; | |
| 31 | |
| 32 // Check that the following functions are optimizable. | |
| 33 var functions = [ f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, | |
| 34 f15, f16, f17, f18, f19, f20, f21, f22, f23, f24, f25, f26, | |
| 35 f27, f28, f29, f30, f31, f32, f33]; | |
| 36 | |
| 37 for (var i = 0; i < functions.length; ++i) { | |
| 38 var func = functions[i]; | |
| 39 print("Testing:"); | |
| 40 print(func); | |
| 41 for (var j = 0; j < 10; ++j) { | |
| 42 func(12); | |
| 43 } | |
| 44 %OptimizeFunctionOnNextCall(func); | |
| 45 func(12); | |
| 46 assertOptimized(func); | |
| 47 } | |
| 48 | |
| 49 function f1() { } | |
| 50 | |
| 51 function f2(x) { } | |
| 52 | |
| 53 function f3() { | |
| 54 let x; | |
| 55 } | |
| 56 | |
| 57 function f4() { | |
| 58 function foo() { | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 function f5() { | |
| 63 let x = 1; | |
| 64 } | |
| 65 | |
| 66 function f6() { | |
| 67 const x = 1; | |
| 68 } | |
| 69 | |
| 70 function f7(x) { | |
| 71 return x; | |
| 72 } | |
| 73 | |
| 74 function f8() { | |
| 75 let x; | |
| 76 return x; | |
| 77 } | |
| 78 | |
| 79 function f9() { | |
| 80 function x() { | |
| 81 } | |
| 82 return x; | |
| 83 } | |
| 84 | |
| 85 function f10(x) { | |
| 86 x = 1; | |
| 87 } | |
| 88 | |
| 89 function f11() { | |
| 90 let x; | |
| 91 x = 1; | |
| 92 } | |
| 93 | |
| 94 function f12() { | |
| 95 function x() {}; | |
| 96 x = 1; | |
| 97 } | |
| 98 | |
| 99 function f13(x) { | |
| 100 (function() { x; }); | |
| 101 } | |
| 102 | |
| 103 function f14() { | |
| 104 let x; | |
| 105 (function() { x; }); | |
| 106 } | |
| 107 | |
| 108 function f15() { | |
| 109 function x() { | |
| 110 } | |
| 111 (function() { x; }); | |
| 112 } | |
| 113 | |
| 114 function f16() { | |
| 115 let x = 1; | |
| 116 (function() { x; }); | |
| 117 } | |
| 118 | |
| 119 function f17() { | |
| 120 const x = 1; | |
| 121 (function() { x; }); | |
| 122 } | |
| 123 | |
| 124 function f18(x) { | |
| 125 return x; | |
| 126 (function() { x; }); | |
| 127 } | |
| 128 | |
| 129 function f19() { | |
| 130 let x; | |
| 131 return x; | |
| 132 (function() { x; }); | |
| 133 } | |
| 134 | |
| 135 function f20() { | |
| 136 function x() { | |
| 137 } | |
| 138 return x; | |
| 139 (function() { x; }); | |
| 140 } | |
| 141 | |
| 142 function f21(x) { | |
| 143 x = 1; | |
| 144 (function() { x; }); | |
| 145 } | |
| 146 | |
| 147 function f22() { | |
| 148 let x; | |
| 149 x = 1; | |
| 150 (function() { x; }); | |
| 151 } | |
| 152 | |
| 153 function f23() { | |
| 154 function x() { } | |
| 155 x = 1; | |
| 156 (function() { x; }); | |
| 157 } | |
| 158 | |
| 159 function f24() { | |
| 160 let x = 1; | |
| 161 { | |
| 162 let x = 2; | |
| 163 { | |
| 164 let x = 3; | |
| 165 assertEquals(3, x); | |
| 166 } | |
| 167 assertEquals(2, x); | |
| 168 } | |
| 169 assertEquals(1, x); | |
| 170 } | |
| 171 | |
| 172 function f25() { | |
| 173 { | |
| 174 let x = 2; | |
| 175 L: { | |
| 176 let x = 3; | |
| 177 assertEquals(3, x); | |
| 178 break L; | |
| 179 assertTrue(false); | |
| 180 } | |
| 181 assertEquals(2, x); | |
| 182 } | |
| 183 assertTrue(true); | |
| 184 } | |
| 185 | |
| 186 function f26() { | |
| 187 { | |
| 188 let x = 1; | |
| 189 L: { | |
| 190 let x = 2; | |
| 191 { | |
| 192 let x = 3; | |
| 193 assertEquals(3, x); | |
| 194 break L; | |
| 195 assertTrue(false); | |
| 196 } | |
| 197 assertTrue(false); | |
| 198 } | |
| 199 assertEquals(1, x); | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 | |
| 204 function f27() { | |
| 205 do { | |
| 206 let x = 4; | |
| 207 assertEquals(4,x); | |
| 208 { | |
| 209 let x = 5; | |
| 210 assertEquals(5, x); | |
| 211 continue; | |
| 212 assertTrue(false); | |
| 213 } | |
| 214 } while (false); | |
| 215 } | |
| 216 | |
| 217 function f28() { | |
| 218 label: for (var i = 0; i < 10; ++i) { | |
| 219 let x = 'middle' + i; | |
| 220 for (var j = 0; j < 10; ++j) { | |
| 221 let x = 'inner' + j; | |
| 222 continue label; | |
| 223 } | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 function f29() { | |
| 228 // Verify that the context is correctly set in the stack frame after exiting | |
| 229 // from with. | |
| 230 | |
| 231 let x = 'outer'; | |
| 232 label: { | |
| 233 let x = 'inner'; | |
| 234 break label; | |
| 235 } | |
| 236 f(); // The context could be restored from the stack after the call. | |
| 237 assertEquals('outer', x); | |
| 238 | |
| 239 function f() { | |
| 240 assertEquals('outer', x); | |
| 241 }; | |
| 242 } | |
| 243 | |
| 244 function f30() { | |
| 245 let x = 'outer'; | |
| 246 for (var i = 0; i < 10; ++i) { | |
| 247 let x = 'inner'; | |
| 248 continue; | |
| 249 } | |
| 250 f(); | |
| 251 assertEquals('outer', x); | |
| 252 | |
| 253 function f() { | |
| 254 assertEquals('outer', x); | |
| 255 }; | |
| 256 } | |
| 257 | |
| 258 function f31() { | |
| 259 { | |
| 260 let x = 'outer'; | |
| 261 label: for (var i = 0; assertEquals('outer', x), i < 10; ++i) { | |
| 262 let x = 'middle' + i; | |
| 263 { | |
| 264 let x = 'inner' + j; | |
| 265 continue label; | |
| 266 } | |
| 267 } | |
| 268 assertEquals('outer', x); | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 var c = true; | |
| 273 | |
| 274 function f32() { | |
| 275 { | |
| 276 let x = 'outer'; | |
| 277 L: { | |
| 278 { | |
| 279 let x = 'inner'; | |
| 280 if (c) { | |
| 281 break L; | |
| 282 } | |
| 283 } | |
| 284 foo(); | |
| 285 } | |
| 286 } | |
| 287 | |
| 288 function foo() { | |
| 289 return 'bar'; | |
| 290 } | |
| 291 } | |
| 292 | |
| 293 function f33() { | |
| 294 { | |
| 295 let x = 'outer'; | |
| 296 L: { | |
| 297 { | |
| 298 let x = 'inner'; | |
| 299 if (c) { | |
| 300 break L; | |
| 301 } | |
| 302 foo(); | |
| 303 } | |
| 304 } | |
| 305 } | |
| 306 | |
| 307 function foo() { | |
| 308 return 'bar'; | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 function TestThrow() { | |
| 313 function f() { | |
| 314 let x = 'outer'; | |
| 315 { | |
| 316 let x = 'inner'; | |
| 317 throw x; | |
| 318 } | |
| 319 } | |
| 320 for (var i = 0; i < 5; i++) { | |
| 321 try { | |
| 322 f(); | |
| 323 } catch (e) { | |
| 324 assertEquals('inner', e); | |
| 325 } | |
| 326 } | |
| 327 %OptimizeFunctionOnNextCall(f); | |
| 328 try { | |
| 329 f(); | |
| 330 } catch (e) { | |
| 331 assertEquals('inner', e); | |
| 332 } | |
| 333 assertOptimized(f); | |
| 334 } | |
| 335 | |
| 336 TestThrow(); | |
| 337 | |
| 338 // Test that temporal dead zone semantics for function and block scoped | |
| 339 // let bindings are handled by the optimizing compiler. | |
| 340 | |
| 341 function TestFunctionLocal(s) { | |
| 342 'use strict'; | |
| 343 var func = eval("(function baz(){" + s + "; })"); | |
| 344 print("Testing:"); | |
| 345 print(func); | |
| 346 for (var i = 0; i < 5; ++i) { | |
| 347 try { | |
| 348 func(); | |
| 349 assertUnreachable(); | |
| 350 } catch (e) { | |
| 351 assertInstanceof(e, ReferenceError); | |
| 352 } | |
| 353 } | |
| 354 %OptimizeFunctionOnNextCall(func); | |
| 355 try { | |
| 356 func(); | |
| 357 assertUnreachable(); | |
| 358 } catch (e) { | |
| 359 assertInstanceof(e, ReferenceError); | |
| 360 } | |
| 361 } | |
| 362 | |
| 363 function TestFunctionContext(s) { | |
| 364 'use strict'; | |
| 365 var func = eval("(function baz(){ " + s + "; (function() { x; }); })"); | |
| 366 print("Testing:"); | |
| 367 print(func); | |
| 368 for (var i = 0; i < 5; ++i) { | |
| 369 print(i); | |
| 370 try { | |
| 371 func(); | |
| 372 assertUnreachable(); | |
| 373 } catch (e) { | |
| 374 assertInstanceof(e, ReferenceError); | |
| 375 } | |
| 376 } | |
| 377 print("optimize"); | |
| 378 %OptimizeFunctionOnNextCall(func); | |
| 379 try { | |
| 380 print("call"); | |
| 381 func(); | |
| 382 assertUnreachable(); | |
| 383 } catch (e) { | |
| 384 print("catch"); | |
| 385 assertInstanceof(e, ReferenceError); | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 function TestBlockLocal(s) { | |
| 390 'use strict'; | |
| 391 var func = eval("(function baz(){ { " + s + "; } })"); | |
| 392 print("Testing:"); | |
| 393 print(func); | |
| 394 for (var i = 0; i < 5; ++i) { | |
| 395 try { | |
| 396 func(); | |
| 397 assertUnreachable(); | |
| 398 } catch (e) { | |
| 399 assertInstanceof(e, ReferenceError); | |
| 400 } | |
| 401 } | |
| 402 %OptimizeFunctionOnNextCall(func); | |
| 403 try { | |
| 404 func(); | |
| 405 assertUnreachable(); | |
| 406 } catch (e) { | |
| 407 assertInstanceof(e, ReferenceError); | |
| 408 } | |
| 409 } | |
| 410 | |
| 411 function TestBlockContext(s) { | |
| 412 'use strict'; | |
| 413 var func = eval("(function baz(){ { " + s + "; (function() { x; }); } })"); | |
| 414 print("Testing:"); | |
| 415 print(func); | |
| 416 for (var i = 0; i < 5; ++i) { | |
| 417 print(i); | |
| 418 try { | |
| 419 func(); | |
| 420 assertUnreachable(); | |
| 421 } catch (e) { | |
| 422 assertInstanceof(e, ReferenceError); | |
| 423 } | |
| 424 } | |
| 425 print("optimize"); | |
| 426 %OptimizeFunctionOnNextCall(func); | |
| 427 try { | |
| 428 print("call"); | |
| 429 func(); | |
| 430 assertUnreachable(); | |
| 431 } catch (e) { | |
| 432 print("catch"); | |
| 433 assertInstanceof(e, ReferenceError); | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 function TestAll(s) { | |
| 438 TestFunctionLocal(s); | |
| 439 TestFunctionContext(s); | |
| 440 TestBlockLocal(s); | |
| 441 TestBlockContext(s); | |
| 442 } | |
| 443 | |
| 444 // Use before initialization in declaration statement. | |
| 445 TestAll('let x = x + 1'); | |
| 446 TestAll('let x = x += 1'); | |
| 447 TestAll('let x = x++'); | |
| 448 TestAll('let x = ++x'); | |
| 449 TestAll('const x = x + 1'); | |
| 450 | |
| 451 // Use before initialization in prior statement. | |
| 452 TestAll('x + 1; let x;'); | |
| 453 TestAll('x = 1; let x;'); | |
| 454 TestAll('x += 1; let x;'); | |
| 455 TestAll('++x; let x;'); | |
| 456 TestAll('x++; let x;'); | |
| 457 TestAll('let y = x; const x = 1;'); | |
| 458 | |
| 459 | |
| 460 function f(x) { | |
| 461 let y = x + 42; | |
| 462 return y; | |
| 463 } | |
| 464 | |
| 465 function g(x) { | |
| 466 { | |
| 467 let y = x + 42; | |
| 468 return y; | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 for (var i=0; i<10; i++) { | |
| 473 f(i); | |
| 474 g(i); | |
| 475 } | |
| 476 | |
| 477 %OptimizeFunctionOnNextCall(f); | |
| 478 %OptimizeFunctionOnNextCall(g); | |
| 479 | |
| 480 f(12); | |
| 481 g(12); | |
| 482 | |
| 483 assertTrue(%GetOptimizationStatus(f) != 2); | |
| 484 assertTrue(%GetOptimizationStatus(g) != 2); | |
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Chromium Code Reviews
Issue 1007783002:
Remove --harmony-scoping flag. (Closed)
Base URL: https://chromium.googlesource.com/v8/v8.git@master